[duì bu qǐ]
[套] （对人有愧） I'm sorry.; sorry; I beg your pardon.; Excuse me.; Pardon me.; Will you forgive me.; if you please; if you don't mind; If I dare say so.; No offence
Pardon me for interrupting you.
对不起， 打搅你了。
Sorry to have given you so much trouble.
对不起， 给你添麻烦了。
I beg your pardon (but would you repeat what you said)?
对不起，请你再讲一遍好吗?
Excuse me, but I'll have to go now.
对不起， 我得走了。
be less than fair to him
对不起他
be unworthy heirs of our ancestors and disappoint our posterity
对不起列祖列宗
We will never do any disservice to you [anything to hurt you].
我们决不会做任何对不起你们的事情。